Apparatus for feeding sheets to bronzing-machines.



J. ROBERTSON 6: A. W. A. E. VEILLARD.

APPARATUS FOR FEEDING SHEETS T0 BRONZING MACHINES. APPLIQATI'ON FILEDNARA, 1911.

1 60,027... Patented Apr. 29, 1913.

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JOSEPH WILLIAM ROBERTSON, 0F WALV ORTE, AND ALBERT VTILLIAM ALPHONSEEUGENE VEILLARD, OF ANEBLEY, LCNDUN, ENGLAND.

APPARATUS FOR FEEDING ST-IEFITS T0 BRONZING-MACHINES.

instinct.

Specification of Letters latent.

Patented Apr. 29, 1913.

Application filed. March 4, 1911. Serial No. 612,392.

To all whom it may concern Be it known that we, JOSEPH WILLIAMltoenn'rson and ALBERT WILLIAM Anrrzonsn EUGENE VnrLInnn, subjects ofthe King of Great Britain, residing, respectively, at 81 Chatham street,lValworth, and 21 Der-went road, Anerley, both in the county of London,in England, have invented a new and useful Apparatus for Feeding Sheetsto Bronzing- Machines, of which the following is a specification.

This apparatus for conveying sheets from printing machines and feedingthem to bronzing machines consists of a grooved board or metal plate ofsuitable width according to the machine with any number of groovesaccording to the width of the board or plate, and a chain running ineach groove with a small block rising from the chain at suitableintervals. If during the time taken between each run of the bronzer thechain travels twenty inches then the blocks on the chain would be twentyinches behind each other. The chains work on sprockets fixed to aspindle which in turn is driven by a chain from the bronzing machine. Tofacilitate altering the blocks on the conveying chains to feed any sizesheet the main or driving spindle is fastened to the driving sprocket bymeans of a small ratchet wheel fastened to the spindle and a toothedpawl fastened to the driving sprocket, so that when the desired positionof the blocks is ob tained the pawl could be pressed down into theratchet and fastened by means of a pin Thus fastened, the sprocketbecomes fixed to the spindle.

In the accompanying drawings, Figure 1, is a plan of the machine; Fig.2, is a side elevation of Fig. 1; Fig. 3, is a section on line A B ofFig. 1, and Fig. 4, is a side elevation of the cam in detail.

o will now describe the construction of our invention as illustrated.

a and Z) are boards or metal plates cut with a number of longitudinalgrooves 0, these said boards or metal plates are connected to gether bylinks (Z and bolts 6. At one end of the board or metal plate a ismounted the driving spindle f carrying a number of sprockets 9 overwhich the endless chains travel. On the end of the spindle is thedriving sprocket h fitted with a pawl 2' and pinion j. At the deliveryend of the board. or metal plate a is a spindle 712 on which is mountedsprockets Z over which the endless chains m in each groove pass.

A delivery table a is attached to two side plates 0 bolted to the sidesof the board or metal plate a, to which is bolted a rod 20 supporting anumber of curved 'bars g for the purpose of guiding the work above thetable to the gripper of an ordinary bronzing machine.

The board or metal plate Z) at the end is provided with two blocks rwith female screws to support the adjustable male screws 5, and thebearings t, through which the spindle a carrying the sprockets orevolves. The ends of both boards a, and b, are cut away in the groovesto receive the sprockets Z, and o, as shown in Fig. 1.

A sprocket w is fixed to the spindle at running in bearings-bolted tothe underside of the board Z). This said spindle in at its end carries acog driver y which engages with a cog follower 2, for operating thespindle 1 and the cam 2. The cam 2 engages with a roller mounted at theend of the lever l. The levers 4, and 5, are pivoted to the spindle 6;these said levers are connected together by a bar 7 with stops 8, ofequal length which lit in recesses cut in the ridges of the board Z), toprevent the conveying of sheets from the printing machine to thebronzing machine if the sheet is in the wrong position. The levers alsocarry the spindle 9, and adjustable wheels 10, which fall into recessescut in board 7). The stops 8 when lowered stop the travel of the sheetif the sheet is out of position on the chains. If preferable the stops 8may be so constructed that they fall into any of the grooves o, in theboard 7), which are chainless, and in that case the outside stops wouldbe dispensed with. When the cam 52. revolves sufficiently to allow theroller 3 to move toward the center of the cam 2 for changing the motion,the wheels 10 are lowered, and if the sheet is in the correct position,the lever 4e carrying the wheels 10 is prevented from sinking to thelowest point by the contact of wheels 10 with the surface of the sheet.Should the sheet not be in the correct position, the action of lever 4Land wheels 10 is not impeded by contact with the surface of the sheet,and stops 8 are then lowered, and cause an obstruction to the passage ofthe sheet, until the next set of blocks 11 comes into proper position toengage the sheet, When the cam 2 comes again in contact with roller 3,raising the stops 8, and allowing the sheet in its correct position topass.

If preferable endless chains may be used in alternate grooves, or suchnumber of chains placed in any of the grooves as required according tothe size of the work, and in that case the wheels are so adjusted on thespindle 9 that they fall into the empty or chainless grooves.

In each of the endless chains m we insert blocks 11 at any suitabledistance apart to suit the size of the work passing through the machine.

The boards or metal plates a, and b, are carried by vertical supports 12which are intended to be bolted to the floor on which the machinestands.

The cam 2 is composed of a cover 13 fitted to a block 14 with a circulardovetailed groove 15 and a recess 16, to receive any number of blocks 17the same being secured by means of screws 18 for the purpose of varyingthe size or shape of the cam.

. We claim:

An apparatus for feeding sheets to bronzing machines, consisting ofboards or metal plates cut with a number of longitudinal grooves andconnected together by links and bolts, spindles fitted in bearings ateach end of the boards or metal plates with sprockets mounted upon themrevolving in recesses cut'in the boards or metal plates allowing thepassage of endless chains running in the longitudinal grooves, a mainspindle driven from the bronzing machine by an endless chain andsprockets, the sprocket on the main spindle being fitted with pawlswhich engage a ratchet fixed to the main spindle, a spindle driven fromthe main spindle having a cog driver at one end driving a cog followerconnected to one end of a spindle carrying a cam at its other end, thecam actuating a roller and pivoted levers carried by another spindle,the levers carrying a rod with Wheels and a bar, the bar fitted withstops operating in recesses cut in the boards or metal plates,

bearings for the spindles, the whole mounted on supports, substantiallyas set forth.

JOSEPH WILLIAM ROBERTSON. ALBERT WILLIAMIALPHONSE EUGENE VEILLARD.

Witnesses ALFRED HAYSLER, FREDERICK ALLVEY;

caplet or this patient may be obtained for flv cents each, by addressingthe commissioner of Patehti,

Washington, D. 0.

